IA Ventures also committed more capital to the business having previously backed its seed and Series A rounds.

Hermes’ Alex Kayyal will join the company board following the investment, which The Trade Desk said would be used to power its expansion into Europe, Asia Pacific, Northern Asia and Australia.

IA Ventures founder and managing partner Roger Ehrenburg said, “We have been partners with [CEO Jeff Green] and The Trade Desk since the beginning, and we’re thrilled to join a growth round that will fuel its phenomenal performance on a global scale.

“Jeff has achieved undeniable results and is laser-focused on evolving the advertising industry. It’s a combination we are proud to power.”